FIX: collage works using percentage values
Resize function had to be remade and collage awfully hacked
Still this provides some extra function
Fix: Concatenation mode works again, called by adding "x" in size val
Changed spaces to tabs
CODE: tab indent fix
FIX: version number
ADD: version to header
CODE indentation cleanups
Update comments.
Removal of old unused comments.
Autor format change
ADD: license document "COPYING.txt"
FIX: Sets a default size for inkscape output files if no resize
selected.
BUGFIX: Inkscape default 100% is 90 DPI not 96
Optimization to expr
Always group operation in curly braces to avoid double substitution. this is faster and more accurate.
Optimize
Use clock internal function instead of bash date to get current date
TESTING
Avoid usage of which to find executables, use catch to try to
execute the file to test if available in the system
REGRESION_FIX

Removed code to make collage using percentages. Done this way
 to avoid problems after movind all spaces to tabs.
Fixed broken concatenation mode
After regretion contatenation mode was broken. adding a check to set
initial values.

Fixed: Unexpected list length in identify output if file has animation
data as artscript retrieves geometry for each frame.